Apparatus for spraying or atomizing liquids or liquid compositions such as paints.



F. LEVY. APPARATUS FOR SPHAYING 0R ATOMIZING LIQUIDS 0R LIQUID COMPOSITIONS SUCH AS PAINTS.

APPLICAATION FILED APH. I9. I9I5.

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FORTUNATO LEVY, OF PARIS, FRANCE, ASSIGNOB. TO GENERAL CARBONIO CO., OE'

BROOKLYN, NEW YORK,;A CORPORATION OF NEW YORK.

. f APPAMTUS FOR SPBAYING- OR ATOMIZING LIQUIDS OR LIQUID COMPOSITIONS SUCH AS PANTS.

Lafrance.

Specification of Letters Patent.

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@riginal application filed. December 21., 1914, Serial No. 878,309. Divided and this application led April 19, 1915. Serial No. 22,371.

To all lwhom z't may concern:

Be it lmown that l', FORTUNATO LEVY, a subject of the Sultan of Turkey, and resident of Paris, France, have invented certain new and useful lmprovements in Apparatus for Spraying or Atomizing Liquids or Liquid Compositions Such as Paints, of which the following is a specification.

rlhis invention relates to apparatus for spraying or atomizing liquids or liquid compositions such as paints, and is a division of my United States application for patent Serial No. 878,309, filed December 21st, 191i.

rl`he apparat-us is particularly adapted for carrying out the method of painting described in my United States Patent No. 1,128,697.

rlhe invention consists in the improvements in devices of this character hereinafter described with reference to a `preferred 4.embodhnent in the accompanying part diagrammatic, part sectional drawing, and` more particularly pointed outv in the appended claims.

Referring to the drawing, it will be seen that the installation comprises the following devices: the liquid carbon dioxid container 1 containing the liquid carbon dioxid or other gas under pressure, the gasier 2 including the heating means 3, the expander 4, the receptacle 5 for the liquid composition and the atomizing tool 6 for applying said composition. 1t will be understood that the liquid gas in the receptacle 1 passes into the gasier 2 where it is heated by the heating means 3; from the gasiier it passes to the expander ai where .the pressure of the gas is reduced, and the reduced-pressure gas is returned to the gasiicr for reasons hereinafter explained. After being reheated, the gas passes to the painting or atomizing tool where it atomizes the liquid paint composition, and a portion of the gas is supplied to the paint receptacle in well-known manner so as to force the paint under pressure into the painting tool.

With this understanding of the operation of the system, the various operating members thereof will now be described.

rlhe liquid gas container 1, which is made strong enough to withstand the internalv pressure to which it is subjected, but the dimensions of which are such that it can be transported with ease, is provided with a special outlet or valve which prevents freezing of the liquid gas as it passes out of the container. ln the normal positions of said container, that is, the positions in which the container is filled and transported before being used in my improved installation, this outlet may be regarded as being located at the top of the container; but when used in connection with my system, the container is.

preferably inverted so that the liquid passes out from its lower end.

'lhe preferred form of outlet from the container illustrated herein comprises a central tubular member 7 and an outer casing or inverted cylindrical member 8 communieating at its lower end with the container 1 through passages 9 and at its upper end with the said tubular member by means of passages 10. 'lhe tubular member? is secured in position by screwing it on the plug 11 which keeps the whole assemblage in vertical position inside the container. The liquid carbon dioxid in the annular space between the casing 8 and the tubular member 'e' passes through the passages 10, and ows down through the central passage 12 whence it passes out through the pipe z. 1t then flows through the pipe 13 to the gasier 2 which will now be more specically described.

The gasifier consists of a horizontal metal member 1l of rectangular shape in section, in which there is formed longitudinally a helical passage 15, produced by tapping one or more squarethreads and bounded internally by a cylindrical hollow member 16 closed at both ends. The liquid carbon dioxid arrives at one end of the passage l5 through said pipe 13 and it passes out at ythe other end in the gaseousstate through may be three in number, as in the example I shown, for heating the gasied liquid. These coiled pipes are connected to the outlet 17 of the gasier by means of a pipe 24.

The chamber 2O is of trapezoidal form in section as shown in Fig. 1, and the coiled pipes 21, 22, 23 are arranged parallel to the inclined outer Walls 25 of said chamber, Which are formed With holes 26 for the escape of the hot air. The carbon dioxid coming through the pipe 24 rises in the coiled pipe 21 and passes down again through the coiled pipe 22. At the end of the coiled pipe 22 the gas passes out of the heating chamber through a pipe 27 and enters the expander 4, which is an expanding device of any suitable construction, and

Which reduces the gas to the desired pressure .for use. After the gas has left the reducing device or expander, it is again heated to compensate for the cooling produced by the additional expansion which takes place in the expander. The gas on leaving the expander 4 through a pipe 28 passes into the lower part of the coiled pipe 23; it passes finally from the heating chamber through a pipe 29 on its Way to the tool 6. The pipe 29 is provided With a branch pipe 30 and containing the reducing valve 31 leads to the top of the paint receptacle 5, and by suitably manipulating the valve 31 the paint can be forcibly fed at the desired pressure to the painting device through the flexible pipe 32, Where itis atomized by the carbon dioxid gas from the flexible connection 33 connected to said pipe 29.

What I claim is 1. In an apparatus of the kind described, the combination of a receptacle for carbon dioxid, an atomizing tool, a receptacle for the substance' to be atomized, means for feeding said substance to said tool, means for heating the carbon dioxid, means for reducing Vthe pressure. .of the heated carbon dioxid, and means for supplying said carbon dioxid to` said tool.

2. An apparatus ofy the kind described, comprising a receptacle for carbon dioxid, means lor heating said carbon dioxid, means for reducing the pressure of the carbon dioxid thus heated, an atomizing means, means for leading the substance to be atomized to said atomizing means, and means for leading said carbon dioxid gas to said atomizing means.

3. An apparatus of the kind described,

vcomprising a receptacle for carbon dioxid,

heating means, means for reducing the pressure of the heated carbon dioxid, means for leading carbon dioxid from said receptacle to said heating and pressure-reducing `means, an atomizing means, a receptacle for the substance to'be atomized, means for feeding said substance from said receptacle to said atomizing means, and means for leading said carbon dioxid from said heating and pressure-reducing means t0 Said atomizing means.

4. Apparatus of the kind described, comprising a receptacle for carbon dioxid, an outlet located below said receptacle, means for heating said carbon dioxid, means for reducing the pressure of the heated carbon dioxid, means for leading the carbon dioxid from said container to said heating means and pressure'- reducing means, an atomizing means, means for leading the substance to be atomized to said atomizing means, and means for leading the carbon dioxid from said heating and pressure reducing means to said atomizing means.

5. An apparatus of the kind described,

ing said carbon dioxid, an atomizing means,

means for leading said carbon dioxid under pressure from said heating, pressurereducing and re-heating means to said atomizing means. f

7. An apparatus of the kind described, comprising in combination a receptacle for carbon dioxid, a heating device, a pres-1 sure-reducing device, an atomizing tool, a receptacle for the substance to be atomized, means for leading carbon dioxid from said carbondioxid receptacle to said heating and pressure-reducing devices, means for leading the carbon dioxid from said heating and pressure-reducing devices to said atomizing tool, and means for feeding the substance to be atomized from said receptacle to said atomizing tool.

8. An apparatus of the kind described, comprising a receptacle for carbon dioxid, a heating device, a pressure-reducing device, a re-heating device, an atomizing tool, a liquid composition receptacle, means for leading carbon dioxid from said (carbon dioxid receptacle to said heating and pressure-reducing devices, means connecting the pressure-reducin device with the re-heatcomposition such as paint, comprising` a portable receptacle for carbon dioXid, a burner, a heating chamber above said burner, a pressure-reducing device communicating with said heating chamber, an atomizing tool, a liquid composition receptacle, means for leading carbon dioXid from said portable receptacle to said heating chamber and pressure-reducing` device, means for leading the carbon dioXid from said heating chamber and pressure-reducing device to said atomizing means, and means for leading the liquid composition from said liquid composition receptacle to said atomizing tool.

10. An apparatus for atomizing aliquid composition such as paint', comprising a portable receptacle for carbon dioXid, heating and pressure reducing means connected to said portable receptacle, an atomizing means, and means for leading carbon dioxid under pressure from said heating and pressure reducing means to said atomizing means, a liquid composition receptacle, and means for leading liquid composition from said receptacle to said atomizing means.

11. A spraying apparatus of the kind described comprising a portable receptacle for carbon dioxid, heating lpressure reducing and re-heatin means connected to Said prtable receptac e, a spraying tool, means for leading carbon dioXid from said heating,

pressure reducing and re-heating means to.

said atomizing means, and meansA for leading the material to be sprayed from said receptacle to said spraying means.

12. In an apparatus of the kind described, the combination of a receptacle for carbon dioxid, an atomizing tool, a receptacle for the substance to be atomized, means for feeding said substance to said tool, a heat- 14...Apparatus of the kind described, comprising a receptacle for carbon dioxid, a heating coil for said carbon dioXid, a pressure-reducing` valve connected to said heating coil, a reheating coil connected to said pressure-reducing valve, an atomizing means, means for leading said carbon dioxid under pressure from said re-heating coil to said atomizing means, and means for leading the substance to be atomized to said '0 atomizing means.

15. Apparatus of the kinddescribed, comprising a receptacle for vcarbon dioxid, means for heating nsaid carbon dioxid, a pressure-reducing'valve, means 'for reheating said carbon dioxid, an atomizing means,

fmeans for leading` said carbon dioXid from said re-heating means to said atomizing means, and means for leading the substance to be atomized to said atomizing means.

Signed at New York city, in the county-of New York and State of New York, this seventeenth day of April, A. D. 1915.

FORTUNATO LEVY..

Witnesses: s HERBERT LANGNER, MARION E. ABRAMS. 

